获取时间

//获取当前时间
            function formatDate(now) { 
                var year=now.getFullYear();  
                var month=now.getMonth()+1;  
                var date=now.getDate();
                if (month >= 1 && month <= 9) {
                    month = "0" + month;
                };
                if (date >= 0 && date <= 9) {
                    date = "0" + date;
                };     
                return year+"-"+month+"-"+date; 
            }
            //获取当前时间前几月
            function formatDateBefore(now,intmon) {
                var year = now.getFullYear();
                var month = now.getMonth() + 1;
                var date = now.getDate();
                if (month - intmon <= 0) {

                    month = month - intmon + 12
                    year = year - 1;
                }
                if (month >= 1 && month <= 9) {
                    month = "0" + month;
                };
                if (date >= 0 && date <= 9) {
                    date = "0" + date;
                };
                return year + "-" + month + "-" + date;
            }